How to replace a firing pin from a Charles Daly 20-gauge semi automatic
Will depend on the make of derringer. They are not all the same. Would suggest you find a gunsmith to do this one. It is cheaper than taking one to them AFTER you work on it.
Best left to a gunsmith
Best left to a gun smith.
There is usually a screw on the top of the receiver in front of the hammer or a pin through the side of the receiver holding the firing pin in.
best left to a gunsmith.
Take it to a gunsmith.
Best left to a trained gunsmith.
Need make & model of .25 Auto.
Josh, check out e-gunparts on the web.
Find a good gunsmith or machinist
You really need to let a gunsmith do this.